Waste-pipe cleaner.



. No. 898,234. TATTNTED SEPT. 8,- 1908.

W. T. LTSENBT'. WASTE PIPEGLEANBR. APPLIOATIGN FILED JUNE 25, 1906.

Unimarc rarnNT OFFICE.

WILLIAM THOMAS LISENBY, OF LONGBEAGH, CALIFORNIA.

WASTE-PIPE ANER.

l LISENBY, a citizen of the United States, and

a resident -oi-Longbeach, in thecounty of Los Angeles and State of California., have invented a new and Improved Vilastc-Pipe Cleaner,

of`which the following is a full, clear, and exact description.

Specification oi' Letters Patent.

Application filed June 275, 1906. Serial No. 323,241.

'lhis invention is an improvement in waste pipe cleaners, having among other objects, the provision ot' an e'llective means for instantly unchoking and cleansing waste pipes which become` clogged with paper, grease or other foreign substance.

'One embodiment oi' the invention consists of a cylinder in which a piston is adapted to reciprocate, said cylinder being connected at opposite ends, respectively by the waste pipe and the pipe leading to the sewer, whereby as the piston is reciprocated any material which might become lodged in the pipes, is positively forced out.

Reference is to be had to the accompanyin T dranfing in which the ligure represents in elevation, partly in section, one embodiment of my improvement as applied to the Waste pipe of a kitchen sink. Y

The numeral l indicates any desired form of kitchen sink connected by the usual waste pipe 2, carrying a trap 3 at its lower end, of any preferred construction. A discharge pipe 4 leading to the sewer connects with the trap through the intermediary of' a horizontally disposed cylinder 5 secured to a wall 6 by means of screws passing through a hanged base 7 at the rear end of the cylinder. The opposite end of the cylinder 5 is provided with a threaded extension 8 on which is screwed a packing nut 9, both the extension and nut being apertured to receive a piston rod l0, said piston rod having i'iXed to it at its inner end in the cylinder 5 piston head ll, ,and at its opposite end on the outside of thc cylinder, a suitable handle l2, that shown being disk-shaped, which will be found proierablc in some constructions. c

- Intermediate the connection of the trap 3 vwith the cylinder 5 and the connection of the pipe 4 with said cylinder, is a third pipe i8 leading from the top of the cylinder and into a vertical pipe 14 forming a vent pipo to conduct` thc gases to the outer atmosphere. Suitable threaded f ionncctions with the trap 3 and the pipo 4', as at 15 and i6, will ordinarily bc provided, in order that my improvement may be readily attached thereto.

' Patented Sept. 8, 1908.A

Then the device is not in use, the elements thereof will normally occupy thc position shown in the drawing ligure, sullicient space being left between the base plate 7 or' thc cylindcr and the connection of the pipe 4 to prevent the piston head l1 from overlapping and obstructing the pipe 4 leading to the sewer. Should the trap, cylinder or pipe leading toy the sewer` become clogged or choked up, the handle 12 is drawn forwardly, causing the piston head to 'lil-st create a suction in the pipe 4 until it passes the vent -pipe 13, at which point it com )rcsses the air or gas in that part of the cy indcr beyond it, forcing any obstruction in the cylinder or tra Svup through the waste pipe. Water willthen pass through the trap tothe front of the piston, which, when moved in the op'- posite direction, will Jforce it, in connection with any foreign substance, down through the pipe 4 leading to the sewer. Should one rcciprocation of the piston fail to unchoke the i e, the operation should be repeated unti al the i es are free'.

Although in connection with a pipe leading from the rave shown my improvement kitchen sink, it is to be understood that itI charge pipe leading from thel cylinder near.

its opposite end, and a vent pipe leading from the cylinder intermediate the wast-e pipe and discharge pipe.

2. In combination with a kitchen sink or l the like, a cylinder arranged belowthe same having a piston therein adapted to be reciprocated, a waste ipe leading from the sink to the cylinder, a ischarge pipe leading from the cylinder, and a vent pipe leading `from the cylinder intermediate the waste pipe and f discharge pipe.

3. In combination with a kitchen sink or tho like, a cylinder having a piston adapted to be reciprocated therein, ati-ap independent orl the cylinderand connecting the sink with the cylinder, and a discharge pipe leading from the cylinder. i

4. In combination with a kitchen sink or y the like, a cylinder arranged approxirnately inder, and a piston slidable in thecylinderv for forcing the products passing therein through the Waste pipe to the discharge pipe.

5.111 combination With a kitchen sink or the like, a cylinder arranged in an approximately horizontal position under the slnk, a piston slidable .in the cylinder, a Waste pipe leading from the sink to a point near one end of the cylinder, and a discharge pipe leading from the cylinder at a point near the opposite cud thereof, said points being so located that the communication of the waste pipe and of the discharge pipe with the cylinder will be unobstructed by the piston when said piston is nioved to its eXtreme positions.

6. In combination With a kitchen sink or the like, a cylinder located thereunder in an approximately horizontal position and )ro- Vided with a iston, a Waste ypipe leaiing from the sink aving a trap connected with the cylinder and independent thereof, and a discharge pipe leading from the cylinder.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM THOMAS LISENBY.

Witnesses:

JNO. H. KEN-NER, A. It. Pon'rEnFIEL'D. 

